baber/WOPTO huggingface dataset:
Patent GB-815083-A (GB)
Title: Improvements in moulded mats
Inventor: HEMM CHARLES
IPC: B29C51/14
Filed: 1954-10-07
Abstract: <PICT:0815083/IV (a)/1> <PICT:0815083/IV (a)/2> A moulded mat such as a car mat comprises a continuous base layer of a vulcanized natural or synthetic rubber composition having adhered thereto a coloured surface layer of a thermoplastic composition based on a polymer derived from vinyl or vinylidene chloride.  The surface layer may comprise polyvinyl chloride, polyvinylidene chloride, a copolymer of vinyl chloride and vinyl acetate, a mixture of polyvinyl chloride with neoprene or a butadieneacrylonitrile copolymer.  A non-migrating plasticizer such as an epoxydized oil or polypropylene adipate may be added to the surface layer composition.  An adhesive such as a vulcanizable rubber solution, which may contain a polyisocyanate, may be applied to the rubber sheet, before the coloured surface layer is superposed.  The assembly of rubber base layer and coloured thermoplastic resin surface sheet is placed in a vacuum mould with the thermoplastic layer in contact with the moulding surface 3, Fig. 2; suction is applied through apertures A and vacuum connection 5, the assembly is placed in an autoclave, and vulcanizing is effected while maintaining the vacuum.  The assembly is removed and the mat stripped from the mould.  In preparing the assembly to be moulded and vulcanized, a web 6, Fig. 4, consisting of the rubber base layer backed by a removable liner and coated on the exposed side with a polyisocyanate adhesive, is coated while passing around a roller 8, with a solution of a vulcanizable adhesive comprising butadiene-acrylonitrile copolymer rubber, chlorinated rubber, polyindene resin, dibutyl phthalate, calcium silicate, titanium dioxide, and vulcanizing ingredients, applied by roller 7 contacting roll 9 dipping in trough 10 containing the adhesive.  The adhesive-coated web is passed over drying rolls 12, 13 where drying may be expedited by the use of hot air, infra-red lamps, or heaters 22; further adhesive is applied at 14, and dried, the liner 16 is wound off on to a spool 17, a sheet 18 of the vinyl or vinylidene chloride polymer composition is pressed on to the rubber base by pressure rollers 19, 20 and the composite sheet is formed into a roll 21.  According to the Provisional Specification, the rubber sheet may be coated with a vulcanizable rubber solution which may contain a polyisocyanate, and the polyvinyl chloride sheet may be coated with a resorcinol resin solution.
Patent GB-501189-A (GB)
Title: Lubricating device for aircraft engines
IPC: F16N29/02
Filed: 1938-10-05
Abstract: 501,189. Controlling lubrication. FAIRBROTHER, H. (Bayerische Motoren Werke Akt.-Ges.) Oct. 6, 1938, No. 28918. [Class 12 (iii)] A thermostat 5 mounted in a hollow erankshaft of an aero engine and connected to an outlet nozzle valve 4 so controls the crosssectional area of the outlet that the rate of oil spray is substantially constant for all .temperatures of the oil.
Patent GB-218908-A (GB)
Title: Improved means for attaching fastenings to straps
IPC: A43C11/14
Filed: 1923-11-16
Abstract: 218,908. Clewlow, J. Nov. 16, 1923. Hook fastenings.-A shoe strap fastening comprises an ornamental face plate 15 having a U- shaped plate 1 secured directly to its underneath side, and having pivoted between the depending arms 3 of the plate 1 a lever clip 4 which forms one member of a detachable hook and eye fastening and serves for adjustably attaching the plate 15 to one of the shoe straps 2. The lever 4 has a pressed out hook 7 with its point directed towards the pivot of the lever. The eye member is sewn to the other strap 9 and is formed from sheet metal with a bridge or eye 11 for engagement by the hook 7 and with a groove or trough 12 for guiding the hook into engagement.
Patent GB-970033-A (GB)
Title: Polyoxymethylene esters
IPC: C08G2/30
Filed: 1963-07-22
Abstract: Polyoxymethylene is esterified in presence of a nitrogen containing derivative of carbonic acid or thiocarbonic acid.  The nitrogen containing derivative may be used in a concentration of from 0.002 to 2% with respect to the esterification agent. Acetic anhydride is the preferred esterification agent while urea thiourea, substituted ureas, biuret, triuret, polyurets, carbamates, cellophanates, cyanuric acid, barbituric acid and diketopiperazines are specified nitrogen containing derivatives. Typical solvents which may be present are pentane, hexane, heptane, benzene, toluene and cyclohexane.  Specification 939,472 is referred to.
Patent GB-1246924-A (GB)
Title: Copolyesters
IPC: C08G63/183
Filed: 1969-06-09
Abstract: 1,246,924. Dyeable copolyesters. GOODYEAR TIRE & RUBBER CO. 9 June, 1969 [9 July, 1968], No. 29050/69. Heading C3R. A copolyester comprises units of ethylene glycol, terephthalic acid and at least one substituted succinic acid of the Formula I in which R 1  is an alkenyl or alkyl radical, R 2  and R 3  may be the same or different and are hydrogen atoms, alkenyl radicals or alkyl radicals, and the sum of the number of carbon atoms in R 1 , R 2  and R 3  is at least 12, the terephthalic acid units comprising 85 to 99À5 mol. per cent of the total acid units, and the succinic acid units comprising 15 to 0À5 mol. per cent of the acid units. The copolyester may include units of other dicarboxylic acids such as adipic, sebacic, azelaic and dodecane dioic acids, or of other glycols such as tetramethylene, pentamethylene and hexamethylene glycols.
Patent GB-735069-A (GB)
Title: Pipe connection
IPC: F16L41/08
Filed: 1952-11-18
Abstract: 735,069. Pipe and nozzle connections. CHAFER, Ltd., J. W., and CHAFER, C. L. Nov. 17, 1953 [Nov. 18, 1952], No. 29125/52. Class 99 (1). A connecting device particularly for connecting two main pipes 17, 18 by a branch pipe 19 or for securing a spraying nozzle 15 in the wall of a pipe comprises a rubber or like bush 10 in the pipe wall opening having a flange 11 at its outer end, and at its inner end a conical nose having a tapered wall thickness, a taperd bore, and longitudinal slits 13 which are opened as the slit end of the bush is expanded by the entering pipe or nozzle spigot. The nose may have a feather edge 12.
Patent GB-1215600-A (GB)
Title: Testing of recording apparatus
Inventor: MAYHEW TERENCE VERNON
IPC: G11B5/00
Filed: 1968-06-19
Abstract: 1,215,600. Testing operating stability of recording/playback apparatus. T. V. MAYHEW and H. W. P. BATES. June 10, 1969 [June 19, 1968], No.29150/68. Heading G1U. The operating stability of recording/playback apparatus such as a tape recorder is tested by using the apparatus to record a constant amplitude signal of frequency determined by a resonator, playing back the recorded signal through a resonant amplifier circuit and measuring the amplitude of the output signal so obtained, the resonance frequency of the resonant amplifier being determined by the resonator or a further resonator having the same frequency. Variation of this output signal from a maximum or minimum value indicates the amount of wow or flutter &c. introduced by the recording apparatus. The test apparatus incorporates a first transistor amplifier section 1, 2, 3 with a positive feedback path into which may be switched a Piezoelectric transducer tuning fork resonator 41, to establish a fixed frequency output at the terminal 52. This recorded on the tape of the recorder to be tested, which is then played back to provide an input at 53 to a resonant amplifier including the transistors 4 and 5. With the switch 42 in its other position the resonator 41 is in the series path between these transistors to determine the resonant frequency of the amplifier. The amplifier output is fed to a meter circuit 44. If the played back frequency is correct the meter 44 reads a maximum. The resonator could be arranged in a negative feedback path of the amplifier, in which case correct frequency operation would be indicated by a minimum reading of the meter.
Patent GB-801075-A (GB)
Title: Improvements relating to the mounting, adjustment and operation of inking or damping rollers for printing machines
IPC: B41F31/30
Filed: 1953-10-23
Abstract: 801,075. Printing machines. WAITE & SAVILLE. Ltd., and WHYTE, F. Oct. 25, 1954 [Oct. 23, 1953], No. 29277/53. Class 100(2) In a rotary printing machine the inking or damping rollers 2 are supported upon members 19, Fig. 2, mounted upon movable carrier levers 4 which are disposed on the outside of the machine frame 7, the supports 19 extending through openings 20 in the frame to receive the roller bearings. The levers 4 are pivoted at 5, Fig. 1, and the rollers 2 are mounted in pairs to engage a supply roller 3. The axes of the roller 2 are maintained substantially in line with the axes of roller 3 and lever 4 so that the lever 4 may be moved to lift the roller 2 from the plate cylinder 6 without affecting the engagement between rollers 2 and 3. The support members 19 for the bearings are pivotally mounted about bushes 8 which are eccentric and rotated by a worm gear 10 to adjust the roller in one direction. The outer ends of the support members 19 are controlled by further eccentrics 17 whereby the position of the roller 2 relative to the carrier lever 4 is adjustable in the other direction. By means of eccentrics 8, 17 the engagement between the supply roller 3 and roller 2 can be precisely adjusted. The outer ends of the levers 4 are restrained against sideways movement by guide members 22 adapted to engage behind the supports 19 as shown in Fig. 2. Both eccentrics 8 and 17 are lockable by nuts 21, 18 whereby each support 19 is secured in the adjusted position relative to its carrier lever 4. The levers 4 of each pair of rollers 2 are drawn together by spring 22a so that the rollers 2 engage the plate cylinder 6. A lifting mechanism for the rollers 2 is provided which consists of cams 11 rotatable about the main shaft 12 so as to displace cam followers 11a on two of the levers 4, these acting tlhrough abutments on the other two. The cams are actuated through lever and linkage 13 either manually by handle 14 or automatically by a trip mechanism 16 which can be brought into connection with the lever and linkage 13. In the form of Fig. 3 damping rollers 2 mounted on levers 19 are urged by spring 23 to engage the supply roller 3. The lever 4 is pivoted at 5 and connected to the levers 19 by adjustable eccentrics 17. A compression spring 25 supports the lower lever 19.
Patent GB-358715-A (GB)
Title: Improvements in or relating to forms for the manufacture of rubber articles by filtration
IPC: B29C41/14
Filed: 1930-09-30
Abstract: 358,715. Latex ; moulds. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London.-(Morgan & Wright; Belleview Avenue, Detroit, Michigan, U.S.A.) Sept. 30, 1930, No. 29326. [Classes 70 and 87 (ii).] In a form for depositing rubber by filtration and comprising a base member constructed to allow fluid flow covered with a sleeve of material which is covered with a coating of filtering material, the sleeve is of originally slightly larger size than the base and is shrunk thereon. The sleeve may be of fabric and shrunk by means of an alkaline solution. As shown in the Figure, the mandrel 1 preferably of aluminium, is provided with a knit stocking 4, and a woven cotton sleeve 5 and is then immersed for about 4 minutes in 20 per cent caustic soda. It is then surfaced with a filtering medium 6 as by immersion in a 15 per cent suspension of celite while maintaining a vacuum on the interior of the mandrel. The knit stocking 4 may be omitted and a sleeve of greater thickness employed.
Patent GB-404110-A (GB)
Title: Improvements in or relating to moulding and vulcanising apparatus and moulds therefor
IPC: B29D30/06
Filed: 1932-10-20
Abstract: 404,110. Vulcanizing tyres. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, and NORCROSS, T., Fort Dunlop, Birmingham. Oct. 20, 1932, No. 29342. [Class 70.] In a press for vulcanizing tyres &c., the moulds are separate from the press to facilitate changing, and have tread portions integral with the side moulds ; the side walls are heated by units separate from the moulds, and the treads by units separate from the side wall units. The tread heaters may be part of the moulds. A press, 1, 2, has side-heating chests 8, 11, between which are clamped moulds 12, 13 in which are cored tread-heating chests 9.
Patent GB-280223-A (GB)
Title: Improvements in or relating to wire rolling machines
IPC: B21B39/16
Filed: 1927-11-03
Abstract: 280,223. Maschinenfabrik-Akt.-Ges. R. Herz, (Assignees of Stein, 0., and Lukas, A.). Nov. 3, 1926. [Convention date]. Rolling.-Wire wound on a reel 10 and heated by electricity, gas &c. in a muffle furnace 14 is reduced in a succession of groups of rolls, the speed of each successive group being adjusted so that the wire can sag between each group, and each group, consisting of two pairs of rolls, the speed of which is such that the wire is tensioned between each pair. Each groups of rolls at right angles to each other are connected by guides 5 which facilitate the initial threading of the wire through the roll, but which are hinged and self opening to allow sag when the wire is threaded, Fig. 3. The rolls are driven by motor from a resilient clutch 13 which allows a slow starting while each individual pair of rolls is driven by chain or toothed gear 7, and is provided with a clutch 9 to stop any desired group. A blower 15 is provided for cooling the rolls in any suitable way and also for removing scale. Each roll surface is formed by a sleeve symetrically grooved so that it can be interchanged or reversed. The reel 11 may receive intermediate sizes of wire directly from any one group of rolls by inserting tubular guides independent of the hinged guides.
Patent GB-1401708-A (GB)
Title: Process for the polymerisation of copolymerisation of olefins and olefin polymerisation catalysts
IPC: C08F4/64
Filed: 1973-06-21
Abstract: 1401708 Olefin polymerization catalyst SOLVAY & CIE 21 June 1973 [22 June 1972] 29530/73 Heading C3P Alpha olefins are polymerized in the presence of a catalyst system comprising (A) an organometallic compound of Groups Ia, IIa, IIIb, IVb or IIb and (B) a solid component obtained by reacting, in any order, (1) a magnesium halide, (2) an oxygen-containing organic compound of a metal (M) of Groups IVa, Va, or VIa containing only organic -O-M groups (at least one), and M-O-M or M=O groups (optional), and (3) an organo-aluminium halide. Component (B) may contain a further reactant (4) which is an oxygen-containing organic compound of a Group IIIb or IVb metal (including silicon). In the examples, ethylene is homopolymerized in the presence of hydrogen, in hexane, and using catalysts comprising (A) Al;Bu 3 , AlMe 3 , or Et 2 AlCl, and (B) reaction products of (1) MgCl 2  (anhydrous or hydrated), MgF 2 , Mg(OH)Cl or EtMgCl, (2) Ti(OBu) 4 , Zr(OBu) 4  or OV(OBu) 3 , (3) EtAlCl 2  and, in some cases, (4) Al(OBu) 3 .
Patent GB-702423-A (GB)
Title: Device for supporting a lighting fitting from a ceiling
IPC: F21V21/02
Filed: 1951-12-18
Abstract: 702,423. Supporting lamp fittings. LUMALAMPAN AKTIEBOLAG. Dec. 18, 1951, No. 29637/51. Class 75 (3) In a device for supporting a lighting fitting from a ceiling comprising a bracket 5 and a canopy for concealing the bracket, the canopy is divided by a wedge-shaped cut 21 into two parts 10, 20 the smaller part 10 being fastened to the bracket and the larger part 20 being so shaped that it fits between the fitting and the bracket so as to be detachably secured thereto with the edges formed by the cut abutting the corresponding edges on the smaller part. The bracket 5 is U-shaped and its upper limb is bolted to the ceiling ; its lower limb has a U-shaped cut out 6 for receiving a tubular bolt 17 which secures an elongated inverted trough 11 for a fluorescent lamp to the bracket. The bottom of the smaller part 10 of the canopy has a cut out 12 coinciding with the cut out 6 in the bracket; the smaller part 10 is welded to the lower surface of the bracket. The larger part 20 of the canopy is slidably engaged in the gap between part of the bracket and the inverted trough. A spring catch 9 on the smaller part engages the larger part. A knock-out 8 for electric wires may be provided on the smaller part.
Patent GB-1401844-A (GB)
Title: Picture frame
IPC: G09F1/12
Filed: 1972-06-26
Abstract: 1401844 Blanks for picture frames A NEUMANN 26 June 1972 [28 June 1971 15 May 1972] 29745/72 Heading A4X A blank for a picture frame comprises four panels each comprising five fold sections and forming in the assembled frame a side frame member, the third fold sections 4 or 18 of one pair of opposed side frame members being formed with a projecting edge 8 which extends beyond the line bisecting the corner of the frame and the third fold sections 4 or 18 of the other pair of opposed side frame members having edges which are along the bisecting line. The frame may be stiffened by a member 21-23 itself formed from a blank. The sections 6 forming the back of the frame may be interlocked at the corners of the frame.
Patent GB-489759-A (GB)
Title: Improvements in and relating to radial cylinder internal combustion engines
IPC: F02B75/22
Filed: 1936-11-03
Abstract: 489,759. Radial - cylinder engines. HEMPEL, R. Nov. 3, 1936, No. 29882. Convention date, Sept. 4. [Class 7 (ii)] The ratio of crankspeed to cylinder-star speed is an odd multiple of the number of cylinders. The number of groups of exhaust, inlet and ignition devices G, F, I, in the ring encircling the cylinder block is equal, in a four-stroke engine, to half the aforesaid ratio increased or decreased by one-half according to whether the cylinders and shafts rotate in opposite or in the same direction, and, in a two-stroke engine, to the ratio increased or decreased in similar circumstances by one.
Patent GB-396364-A (GB)
Title: Improvements in electrical brush holding devices
IPC: H01R39/38
Filed: 1931-10-28
Abstract: 396,364. Brush-holders for dynamoelectric machines. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Oct. 28, 1931, No. 29905. Convention date, April 15. Void [Published under Sect. 91 of the Acts]. [Class 35.] The pressure-arm of a holder for a sliding brush is so mounted that the end pressing on the brush has a rectilinear motion in the direction of the brush-axis. In the arrangement shown in Fig. 1, the pressure arm 7 is secured to a plate 5 by a pin 6 working in a slot and carries a pin 9 which is pressed against the camshaped end of a spring-pressed pivoted arm 8 by a spring 10. Other arrangements are described in which cam-surfaces attached to the pressure arm roll on appropriately shaped fixed surfaces. Fig. 5 shows an arrangement in which the arm 7 has a circular surface rolling on a plane surface on the fixed piece 5 and a flexible strip 17 of conducting material, which also serves as a brush-lead is arranged between them.
Patent GB-242467-A (GB)
Title: Improvements in or relating to upholstered seats
IPC: A47C27/12
Filed: 1924-12-12
Abstract: 242,467. Johnson, E. E. Dec. 12, 1924. Mattresses and cushions. - A self-contained upholstered cushion o, b is provided with a longitudinally hinged flap c so that it may be used as a seat back, Fig. 2, of varying thickness, or as a mattress, Fig. 4, of substantially uniform thickness.
Patent GB-486761-A (GB)
Title: Improvements in gas meters
IPC: G01F3/22
Filed: 1936-11-04
Abstract: 486,761. Gas meters. WILSON GASMETERS, Ltd., G., (in Liquidation), and POOLE, D. G. E. Nov. 4, 1936, Nos. 29984/36 and 4696/37. [Class 54] The admission and exhaust of gas to and from the measuring chambers of a gas meter is controlled by a rotating valve 13 which is arranged in a ported cylinder 14 in or parallel with the central meter partition. The valve 13 has a non-circular stem 15 at its upper end fitting in a similarly shaped socket in the bottom of a crankshaft 17 rotated by the usual flag-wires and is supported at its lower end by a footstep bearing 18 carried by a screw-plug 19. When the plug 19 is unscrewed the valve 13 can be removed and replaced without disturbing the valve operating mechanism. The cylinder 14 is connected at the top and bottom by passages 28, 27 to the meter inlet pipe 3 and at the middle by a passage 48 to the meter outlet pipe 4. The valve 13, which may be made of metal or a resinoid product such as that sold under the Registered Trade Mark " Bakelite," comprises an upper portion 31 having diametrically opposed semicircular flanges 32, 34 and a lower portion 35, displaced 90‹ relatively to the upper portion, having diametrically opposed semicircular flanges 37, 38. The upper portion 31 controls the flow of gas through ports 22, 24 in the cylinder 14 to the two measuring chambers on one side and the lower portion controls the flow of gas through ports 23, 25 to the two measuring chambers on the other side of the meter partition.
Patent GB-757523-A (GB)
Title: Rubber compositions
Inventor: STAUDINGER JOHANN JOSEF PETER
IPC: C08L7/00
Filed: 1953-10-30
Abstract: Natural rubber, a polystyrene type resin and an organic peroxide are intimately mixed and heated, e.g. on a mill, to a temperature sufficient for the peroxide to form free radicals to form a composition suitable for the reinforcement of natural rubber. Styrene, vinyl toluene, methyl and ethyl nuclear substituted styrenes and a -methyl styrene polymers and copolymers may be used and peroxides mentioned are benzoyl peroxide, cumene and t-butyl hydroperoxides and t-butyl perbenzoate.  The composition may be used for shoe soles, floors, mouldings and extrusions.  In an example, a blend with rubber, zinc oxide, sulphur, stearic acid and cyclohexylbenzthiazyl sulphenamide is vulcanized.ALSO:A homogeneous composition adapted for the reinforcement of natural rubber, is prepared by mixing and heating a mixture comprising natural rubber, polystyrene-type resin, and an organic peroxide to a temperature sufficient for the peroxide to break down with the formation of free radicals whereby the rubber becomes chemically linked with the polystyrene-type resin, which consists of a polymer or copolymer of styrene or a derivative obtained by substituting a hydrogen atom thereof with an alkyl group, e.g. nuclear methyl or ethyl substituted styrenes, or a -methyl styrene.  The organic peroxide may consist of cumene hydroperoxide, benzoyl peroxide, tertiary butyl perbenzoate, or tertiary butyl hydroperoxide.  The mixture may comprise 1 part by weight of natural rubber per 1 to 3 parts polystyrene-type resin, and 1 to 20 parts organic peroxide per 100 parts rubber, and is preferably heated for 5 to 30 minutes at 130 DEG  to 160 DEG C.  In one example 200 parts by weight polystyrene powder mixed with 10 parts tertiary butyl perbenzoate are milled into 100 parts pale crepe rubber at 150 DEG C.  Amounts of 20, 30, and 40 parts by weight of the reaction product are milled into 80, 70, and 60 parts, respectively, of pale crepe, and vulcanizing and other ingredients, and the resultant mixes vulcanized.  In a further example polyvinyl toluene is used as the polystyrene type resin.